Table 1.

Child Participant Demographics and Psychological and Abdominal Pain Characteristics

A. Demographics
Demographics	Total Cohort (n=261)
Age, mean (SD) (years old)	10.4 (2.6)
Gender Female, n (%)	170 (65.1)
Race/Ethnicity, n (%)
White, Non-Hispanic	155 (59.4)
Black, Non-Hispanic	36 (13.8)
Hispanic	57 (21.8)
Others	13 (5.0)
B. Psychological and Abdominal Pain Characteristics
Psychological and Abdominal Pain Factors	Mean (SD) Range	Z-Score Range
BASC-2 Child Self-Report Anxiety Scale T-Score*	51.5 (11.0) (34 – 80)	−1.60 – 2.60
BASC-2 Child Self-Report Depression Scale T-Score*	47.8 (8.6) (40 – 86)	−0.91 – 4.45
Child Self-Report Somatization Inventory Total Score	28.5 (18.4) (0 – 104)	−1.54 – 4.10
Pain Catastrophizing Z-scores**	0.12 (0.9) (−2.38 – 2.5)	−2.38 – 2.50
IBS Abdominal Pain Intensity and Frequency Composite Score	48.0 (43.3) (2 – 224)	−1.06 – 4.06

^*Some participants BASC scale T scores were converted to BASC-2 scale T scores

^**This is based on either the 11-item Child Self-Reported Pain Catastrophizing Scale Z-scores or 8-item select questions from the Pain Response Inventory summed score Z-scores

BASC, Behavioral Assessment System for Children; BASC-2, Behavioral Assessment System for Children, 2nd Edition; IBS, irritable bowel syndrome